| Company | Timeline | Status | |
| RTD Products Limited Director • Managing Director | 7 Mar 2006←6 Years→4 Oct 2012 | Dissolved | |
| Thermocouple Instruments Limited Director • Managing Director | 7 Mar 2006←6 Years→1 Oct 2012 | Dissolved | |
| Cornelius Bros. (Engineers) Limited Director • Managing Director | 7 Mar 2006←6 Years→4 Oct 2012 | Dissolved | |
| Sydney Smith Dennis Limited Director • Managing Director | 2 Jul 1998←13 Years→2 Apr 2012 | Dissolved | |
| Bentley Instrument Company Limited Director • Managing Director | 22 Sep 1994←17 Years→31 May 2012 | Active | |
| The British Rototherm Company Limited Director • Managing Director | 24 Dec 1991←20 Years→30 Sep 2012 | Active | |
| Kenfig Industries Limited Director • Managing Director | 22 Jun 1991←20 Years→2 Apr 2012 | Dissolved | |
